制作企业网站的代码,馆陶专业做网站,莱芜市官网,wordpress 可以上传存储附件目录 1. Linux之 4 种休眠模式 1. Linux之 4 种休眠模式
# echo standby /sys/power/state //CPU和RAM在运行
# echo mem /sys/power/state //挂起到内存(待机),关闭硬 盘、外设等设备
# echo disk /sys/power/state //挂起到硬盘(休眠),关闭硬盘、外设等设备/sys/power/state //CPU和RAM在运行
# echo mem /sys/power/state //挂起到内存(待机),关闭硬 盘、外设等设备
# echo disk /sys/power/state //挂起到硬盘(休眠),关闭硬盘、外设等设备进入关机状态。此时计算机
完全关闭不耗电
# echo on /sys/power/state //退出休眠
# echo 10 /sys/class/rtc/rtc0/wakealarm //10s后rtc唤醒cpu- Onon S0 - Working
- Standby standby S1 - CPU and RAM are powered but not executed
- Suspend to RAMmem) S3 - RAM is powered and the running content is saved to RAM
- Suspend to DiskHibernationdisk S4 - All content is saved to Disk and power down2.查看电源状态
//查看当前睡眠情况
# cat /sys/power/state//查看当前那些占用了阻止深度睡眠的wake lock
# cat /sys/power/wake_lock //查看wake lock状态情况
# cat /sys/proc/wakelocks//手动释放一次名称为“PowerManagerSerivce”的wake lock引用次数-1为0时进入睡眠
#cat PowerManagerService /sys/power/wake_unlock
